ArticleJournal of neurophysiology2016
Excitatory amino acid transporters tonically restrain nTS synaptic and neuronal activity to modulate cardiorespiratory function.
Article in Journal of neurophysiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed, 30 citations in OpenAlex.
- Molecular changes in hypoxia-induced central neural circuits and nuclei.Medical gas research · 2026Review
- Cholecystokinin Induces CaThe European journal of neuroscience · 2026Article
- The development but not the maintenance of phrenic and sympathetic long-term facilitation after acute intermittent hypoxia requires nucleus tractus solitarii HExperimental neurology · 2025Article
- Glutamate stress in the caudal nucleus tractus solitarii (nTS): Impact on respiratory function and synaptic signaling in an Alzheimer's disease model.Experimental neurology · 2025Article
- Oxytocin and corticotropin-releasing hormone exaggerate nucleus tractus solitarii neuronal and synaptic activity following chronic intermittent hypoxia.The Journal of physiology · 2024Article
- Vagotomy blunts cardiorespiratory responses to vagal afferent stimulation via pre- and postsynaptic effects in the nucleus tractus solitarii.The Journal of physiology · 2024Article
- Paraventricular nucleus projections to the nucleus tractus solitarii are essential for full expression of hypoxia-induced peripheral chemoreflex responses.The Journal of physiology · 2023Article
- Glial Modulation of Energy Balance: The Dorsal Vagal Complex Is No Exception.International journal of molecular sciences · 2022Review
- Unilateral vagotomy alters astrocyte and microglial morphology in the nucleus tractus solitarii of the rat.American journal of physiology. Regulatory, integrative and comparative physiology · 2021Article
- The role of astrocytes in the nucleus tractus solitarii in maintaining central control of autonomic function.American journal of physiology. Regulatory, integrative and comparative physiology · 2021Review
- Gamma-Aminobutyric Acid Transporters in the Nucleus Tractus Solitarii Regulate Inhibitory and Excitatory Synaptic Currents That Influence Cardiorespiratory Function.Frontiers in physiology · 2021Article
- Mechanisms Underlying Neuroplasticity in the Nucleus Tractus Solitarii Following Hindlimb Unloading in Rats.Neuroscience · 2020Article
- Astrocytes in the nucleus of the solitary tract: Contributions to neural circuits controlling physiology.Physiology & behavior · 2020Review
- Peripheral-to-central immune communication at the area postrema glial-barrier following bleomycin-induced sterile lung injury in adult rats.Brain, behavior, and immunity · 2020Article
- Loss of excitatory amino acid transporter restraint following chronic intermittent hypoxia contributes to synaptic alterations in nucleus tractus solitarii.Journal of neurophysiology · 2020Article
- Thrombin action on astrocytes in the hindbrain of the rat disrupts glycemic and respiratory control.American journal of physiology. Regulatory, integrative and comparative physiology · 2020Article
- Sustained Hypoxia Alters nTS Glutamatergic Signaling and Expression and Function of Excitatory Amino Acid Transporters.Neuroscience · 2020Article
- Astrocytic glutamate transporters reduce the neuronal and physiological influence of metabotropic glutamate receptors in nucleus tractus solitarii.American journal of physiology. Regulatory, integrative and comparative physiology · 2020Article
- The PVN enhances cardiorespiratory responses to acute hypoxia via input to the nTS.American journal of physiology. Regulatory, integrative and comparative physiology · 2019Article
- Hydrogen peroxide inhibits neurons in the paraventricular nucleus of the hypothalamus via potassium channel activation.American journal of physiology. Regulatory, integrative and comparative physiology · 2019Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
The nucleus tractus solitarii (nTS) is the initial central termination site for visceral afferents and is important for modulation and integration of multiple reflexes including cardiorespiratory reflexes. Glutamate is the primary excitatory neurotransmitter in the nTS and is removed from the extracellular milieu by excitatory amino acid transporters (EAATs). The goal of this study was to elucidate the role of EAATs in the nTS on basal synaptic and neuronal function and cardiorespiratory regulation. The majority of glutamate clearance in the central nervous system is believed to be mediated by astrocytic EAAT 1 and 2. We confirmed the presence of EAAT 1 and 2 within the nTS and their colocalization with astrocytic markers. EAAT blockade withdl-threo-β-benzyloxyaspartic acid (TBOA) produced a concentration-related depolarization, increased spontaneous excitatory postsynaptic current (EPSC) frequency, and enhanced action potential discharge in nTS neurons. Solitary tract-evoked EPSCs were significantly reduced by EAAT blockade. Microinjection of TBOA into the nTS of anesthetized rats induced apneic, sympathoinhibitory, depressor, and bradycardic responses. These effects mimicked the response to microinjection of exogenous glutamate, and glutamate responses were enhanced by EAAT blockade. Together these data indicate that EAATs tonically restrain nTS excitability to modulate cardiorespiratory function.
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